Stovepipe elbow



All@ E@ W2@ 359598@ H. E. WANG STOVEPIPE ELBOW Filed Oct. 29, 1925 Patented Aug. 10, 1926.

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STOVEIIPE ELBOW.

f s AppIication filed October 29, 1925. Serial No. 65,619.

The smoke pipes of heating stoves, fur naces, boilers and ranges require cleaning in order to insure a proper draft. To remove the soot, ashes and other accumulations it is usually necessary to disconnect and remove the pipe and this is attendant with dust and dirt both to the person and surroundings.

The purpose of this invention is to enable the cleaning of a smoke pipe without the necessity of disconnecting or removing the same from the chimney or stove and without Scattering dust or the soiling of the hands and clothing of the person.

In accordance with this invention, the elbow at the intersection of the vertical and horizontal branches of a line of smoke pipe is formed with an opening for the introduction of a scraper, or other form of cleaner, and this opening is closed by a cover which is displaceable to admit of ready access to the pipe and which when closed is made secure.

TWhile the drawings illustrate a preferred embodiment of the invention it is to be understood that in adapting the means to meet specific needs and requirements the design may be varied, and such other changes in the minor details of construction may be resorted to within the scope of the invention as claimed, without departing from the spirit thereof.

F or a full understanding of the invention and the merits thereof, reference is to be had to the following description and the drawings hereto attached, in which- Figure l is a side sectional view of an elbow provided with a clean out opening embodying the invention,

Figure 2 is a front view of the elbow, a portion of the cover being broken away,

Figure 3 is a sectional view on the line 3--3 of Figure l, and

Figure 4 is a detail perspective view of a scraper or cleaner.

Corresponding and like parts are referred to in the following description and designated in the several views of the drawings by like reference characters.

rlhe elbow l may be of any preferred construction such as provided to be interposed. in the length of a stove pipe connecting a steve with a chimney, and in accordance "with this invention the elbow is provided upon the outer side of the portion inter mediate the branches with a clean out opening 2 to which is fitted a frame 3 which. overlaps the marginal portion of the elbow bordering upon the clean out opening to which it is secured by bolts t or other fastening means. The frame B is usually of cast metal and the side adjacent the elbow is shaped to conform thereto so as to obtain a close joint, whereas the outer side is straight to receive a fiat cover 5. The clean out opening 2 is elongated and admits of ready access to bot-h branches of the elbow so that a scraper or cleaner may be introduced to each of the branches to clean the length of pipe in line therewith. Thumb screws 6 serve to secure the cover 5 to the frame 3.

Then a line of stove pipe includes an elbow embodying the invention it may be readily cleaned by removing pthe cover 5 H and introducing a scraper or cleaner, such as shown in Figure 4L, through the clean out opening 2 and manipulating the scraper to draw the soot, ashes and the like toward the vertical branch through which the accumulation drops into the stove and from which it may be removed in any convenient and preferred way.

The scraper comprises a blade 7 and a handle 8, said blade being elongated and adapted to be readily passed through the clean cut opening 2, the curved edge of the blade conforming to the stove pipe and the straight edge being adapted for use in connection with the stove. A crimp 9 in the handle 8 near the blade 7 forms a convenient grip to take hold of when the blade is being manipulated close to the opening 2.

For convenience of exposing the opening 2 without detaching the cover 5 the latter has an open slot l() to receive one of the fastenings 6. By loosening the fastenings 6 the cover 5 may be swung to one side to admit of the scraper being passed through the opening 2. After the pipe has been cleaned the cover 5 is swung back to place and made secure by retightening the fastenings 6.

Having thus described the invention, I claim:

An elbow for stove pipes having a straight `section intermediate the branches, and having an opening in the outer side of vthe straight section elongated in the plane oit the elbow, an. elrnigated cast tiental 'frente secured to and tting close against the outer side of the straight section of the elbow in line with the opening therein and having every part of its outer side in a straight plane, a Hat @over fitting close against the outer straight side of the frame and pivoted at one end thereto, and having a lateral slot at its opposite end, and a thumb screw threaded into the frame in position to enter the lateral slot of the pivoted cover and secure it in closed position.

In testimony whereof I afix my signuture.

HARRY E. WANG. [L 5.] 

